/* =========================================================
   SPRAWL — a Neuromancer-inspired terminal theme
   ========================================================= */

:root {
  --neon-cyan: #00f0ff;
  --neon-magenta: #ff00e6;
  --neon-yellow: #ffe600;
  --terminal-green: #00ff9c;
  --warning-red: #ff3355;

  --dark-bg: #0a0a0f;
  --darker-bg: #050508;
  --panel-bg: #0e0e18;
  --panel-bg-raised: #12121e;
  --border-color: rgba(0, 240, 255, 0.28);
  --border-color-dim: rgba(0, 240, 255, 0.12);

  --text-main: #cfd6e6;
  --text-bright: #f2f6ff;
  --text-dim: #6b7280;

  --accent-color: var(--neon-cyan);

  --mono: 'JetBrains Mono', 'Share Tech Mono', 'Courier New', monospace;
  --mono-display: 'Share Tech Mono', 'JetBrains Mono', monospace;
}

/* ---------- reset & base ---------- */

* {
  box-sizing: border-box;
}

html {
  background: var(--darker-bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--dark-bg);
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(0, 240, 255, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(255, 0, 230, 0.06), transparent);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: color 0.15s ease, text-shadow 0.15s ease;
}

a:hover {
  color: var(--neon-magenta);
  text-shadow: 0 0 8px rgba(255, 0, 230, 0.6);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.visibility-hidden {
  display: none !important;
}

::selection {
  background: var(--neon-magenta);
  color: var(--darker-bg);
}

/* thin neon scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--darker-bg);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--neon-cyan), var(--neon-magenta));
  border-radius: 6px;
}

/* ---------- ambient overlays ---------- */

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.12) 0px,
    rgba(0, 0, 0, 0.12) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
  animation: scan-drift 9s linear infinite;
}

@keyframes scan-drift {
  0% { background-position: 0 0; }
  100% { background-position: 0 120px; }
}

.crt-vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 998;
  box-shadow: inset 0 0 18vw rgba(0, 0, 0, 0.75);
}

/* ---------- shared bits ---------- */

.prompt,
.prompt-sm {
  color: var(--terminal-green);
}

.prompt-sm {
  font-size: 0.85em;
}

.cursor-blink {
  color: var(--neon-cyan);
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }
.dot-online {
  background: var(--terminal-green);
  box-shadow: 0 0 6px var(--terminal-green);
  animation: blink 2s steps(1) infinite;
}

/* glitch text effect */
.glitch {
  position: relative;
  color: var(--text-bright);
  font-family: var(--mono-display);
  letter-spacing: 0.02em;
  text-shadow: 0 0 12px rgba(0, 240, 255, 0.35);
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  overflow: hidden;
  background: transparent;
}

.glitch::before {
  color: var(--warning-red);
  clip-path: inset(0 0 55% 0);
  animation: glitch-shift 4.5s infinite linear alternate-reverse;
}

.glitch::after {
  color: var(--neon-cyan);
  clip-path: inset(55% 0 0 0);
  animation: glitch-shift 3.2s infinite linear alternate-reverse;
}

@keyframes glitch-shift {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-2px, 1px); }
  40% { transform: translate(2px, -1px); }
  60% { transform: translate(-1px, -1px); }
  80% { transform: translate(1px, 1px); }
  100% { transform: translate(0, 0); }
}

/* name glitch: a NetWatch-style flicker, cyan glow with an occasional
   green/cyan chromatic pop, reserved for the name on the homepage. */
.name-glitch {
  color: var(--neon-cyan);
  font-family: var(--mono-display);
  letter-spacing: 0.02em;
  animation: name-glitch-flicker 3s infinite;
}

@keyframes name-glitch-flicker {
  0%, 90%, 100% {
    text-shadow: 0 0 10px var(--neon-cyan), 0 0 22px rgba(0, 240, 255, 0.5);
  }
  92% {
    text-shadow: -2px 0 var(--terminal-green), 2px 0 var(--neon-cyan);
  }
  94% {
    text-shadow: 2px 0 var(--terminal-green), -2px 0 var(--neon-cyan);
  }
}

/* terminal window "chrome" */
.terminal-window {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.05), 0 20px 60px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  margin-bottom: 2rem;
}

.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 0.6rem 1rem;
  background: linear-gradient(180deg, var(--panel-bg-raised), var(--panel-bg));
  border-bottom: 1px solid var(--border-color-dim);
}

.terminal-titlebar-label {
  margin-left: 1rem;
  color: var(--text-dim);
  font-size: 0.8rem;
}

.terminal-body {
  padding: 1.75rem 2rem;
}

/* ---------- layout ---------- */

main#content {
  max-width: 860px;
  margin: 0 auto;
  padding: 6.5rem 1.25rem 4rem;
}

.container {
  width: 100%;
}

/* ---------- header ---------- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(5, 5, 8, 0.82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color-dim);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.header.header-shadow {
  border-color: var(--border-color);
  box-shadow: 0 2px 24px rgba(0, 240, 255, 0.12);
}

.header-nav {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 1.25rem;
}

.avatar-frame {
  position: relative;
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.35);
}

.avatar-frame::before,
.avatar-frame::after {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  border-color: var(--neon-magenta);
}

.header .avatar img {
  display: block;
  width: 34px;
  height: 34px;
  object-fit: cover;
}

.nav-title {
  font-family: var(--mono-display);
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-brand-prompt {
  color: var(--terminal-green);
}
.nav-brand-sep {
  color: var(--text-dim);
}
.nav-brand-cmd {
  color: var(--text-bright);
  margin-left: 0.35rem;
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-link a {
  color: var(--text-main);
  font-size: 0.9rem;
}

.nav-bracket {
  color: var(--text-dim);
}

.nav-link a:hover .nav-bracket {
  color: var(--neon-magenta);
}

#hamburger-menu-toggle {
  display: none;
  cursor: pointer;
  color: var(--neon-cyan);
}

.nav-hamburger-list {
  display: none;
}

/* ---------- home / hero ---------- */

.hero-terminal .terminal-body {
  padding: 1.75rem 2rem 2.25rem;
}

.boot-line {
  margin: 0 0 1.25rem;
  color: var(--terminal-green);
  font-size: 0.85rem;
}

.hero-row {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.avatar-hero .avatar-frame img {
  width: 88px;
  height: 88px;
  object-fit: cover;
  display: block;
}

.hero-text h1 {
  margin: 0 0 0.5rem;
  font-size: 2.3rem;
}

.hero-desc {
  margin: 0;
  color: var(--text-main);
}

.social-icons {
  margin: 1.5rem 0 2.5rem;
}

.social-icons-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  margin: 0;
}

.social-icon a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--panel-bg);
  transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.social-icon a:hover {
  border-color: var(--neon-magenta);
  box-shadow: 0 0 12px rgba(255, 0, 230, 0.4);
  transform: translateY(-2px);
}

.social-icon svg {
  width: 18px;
  height: 18px;
  fill: var(--neon-cyan);
}

.social-icon a:hover svg {
  fill: var(--neon-magenta);
}

/* ---------- post lists ---------- */

.section-heading {
  font-size: 1.1rem;
  color: var(--text-bright);
  margin: 0 0 1rem;
}

.list-title {
  font-size: 1.4rem;
  color: var(--text-bright);
  margin: 0 0 1.5rem;
}

.posts-year {
  color: var(--text-dim);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px dashed var(--border-color-dim);
}

.post-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.65rem 0.75rem;
  border-left: 2px solid transparent;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.post-row:hover {
  border-left-color: var(--neon-magenta);
  background: rgba(0, 240, 255, 0.04);
}

.post-row-link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  color: var(--text-main);
  min-width: 0;
}

.post-row-link:hover {
  color: var(--neon-cyan);
  text-shadow: none;
}

.post-row-date {
  color: var(--text-dim);
  font-size: 0.82rem;
  white-space: nowrap;
}

.post-row-arrow {
  color: var(--neon-magenta);
}

.post-row-title {
  color: var(--text-bright);
  overflow: hidden;
  text-overflow: ellipsis;
}

.post-row:hover .post-row-title {
  color: var(--neon-cyan);
}

.post-row-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tag-chip-mini {
  font-size: 0.72rem;
  color: var(--terminal-green);
  opacity: 0.8;
}

.home-posts {
  margin-top: 1rem;
}

/* ---------- tags ---------- */

.tags-meta {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: -0.5rem 0 1.75rem;
}

.tags-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 0.6rem 0.9rem;
  list-style: none;
  padding: 2rem 1rem;
  margin: 0;
  border: 1px solid var(--border-color-dim);
  border-radius: 8px;
  background:
    radial-gradient(ellipse 70% 100% at 50% 0%, rgba(0, 240, 255, 0.05), transparent),
    var(--panel-bg);
}

.tag-chip a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border-color-dim);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
  line-height: 1.4;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.tag-chip a:hover {
  border-color: var(--neon-magenta);
  box-shadow: 0 0 10px rgba(255, 0, 230, 0.35);
  background: rgba(255, 0, 230, 0.06);
  color: var(--neon-cyan);
  text-shadow: none;
  transform: translateY(-1px);
}

.tag-name {
  color: var(--terminal-green);
}

.tag-posts-count {
  font-size: 0.75em;
  color: var(--text-dim);
}

.tag-chip a:hover .tag-name,
.tag-chip a:hover .tag-posts-count {
  color: inherit;
}

/* weight the cloud by tag frequency, biggest/brightest first */
.tag-chip.tag-t5 a {
  font-size: 1.5rem;
  padding: 0.4rem 0.9rem;
  border-color: var(--border-color);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.12);
}

.tag-chip.tag-t4 a {
  font-size: 1.2rem;
  border-color: var(--border-color);
}

.tag-chip.tag-t3 a {
  font-size: 1rem;
}

.tag-chip.tag-t2 a {
  font-size: 0.85rem;
  opacity: 0.82;
}

.tag-chip.tag-t1 a {
  font-size: 0.75rem;
  opacity: 0.6;
}

.tag-chip a:hover {
  opacity: 1;
}

/* ---------- single post ---------- */

.post-header-section h1 {
  font-size: 1.85rem;
  margin: 0 0 0.5rem;
}

/* profile pages borrow the homepage logo treatment and its larger size */
.post-header-section h1.name-glitch {
  font-size: 2.3rem;
}

.post-header-section small {
  display: block;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.post-date {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 0 0 1rem;
}

.post-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0 0 1.75rem;
}

.post-tag a {
  font-size: 0.78rem;
  color: var(--terminal-green);
  border: 1px solid var(--border-color-dim);
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
}

.post-tag a:hover {
  border-color: var(--neon-magenta);
  color: var(--neon-magenta);
  text-shadow: none;
}

.post-content {
  color: var(--text-main);
  border-top: 1px dashed var(--border-color-dim);
  padding-top: 1.75rem;
}

.post-content h2,
.post-content h3,
.post-content h4 {
  color: var(--text-bright);
  font-family: var(--mono-display);
  margin: 2.25rem 0 1rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--neon-cyan);
}

.post-content h2::before {
  content: '## ';
  color: var(--text-dim);
}
.post-content h3::before {
  content: '### ';
  color: var(--text-dim);
}

.post-content p {
  margin: 0 0 1.2rem;
}

.post-content img {
  max-width: 100%;
  border: 1px solid var(--border-color-dim);
  border-radius: 4px;
}

.post-content blockquote {
  margin: 1.5rem 0;
  padding: 0.75rem 1.25rem;
  border-left: 3px solid var(--neon-magenta);
  background: rgba(255, 0, 230, 0.05);
  color: var(--text-main);
}

.post-content hr {
  border: none;
  border-top: 1px dashed var(--border-color-dim);
  margin: 2.5rem 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.post-content th,
.post-content td {
  border: 1px solid var(--border-color-dim);
  padding: 0.5rem 0.75rem;
  text-align: left;
}

.post-content th {
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.05);
}

.post-content code {
  font-family: var(--mono);
  background: rgba(0, 240, 255, 0.08);
  color: var(--terminal-green);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.9em;
}

.post-content pre {
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.25rem 1rem 1rem;
  overflow-x: auto;
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.08);
}

.post-content pre::before {
  content: '$';
  position: absolute;
  top: 0.4rem;
  left: 0.9rem;
  color: var(--neon-cyan);
  font-size: 0.75rem;
  opacity: 0.6;
}

.post-content pre code {
  background: none;
  color: inherit;
  padding: 0;
}

/* table of contents */

.post-toc {
  margin-top: 2rem;
}

#toc a {
  display: block;
  padding: 0.3rem 0;
  color: var(--text-dim);
  font-size: 0.85rem;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
}

#toc a:hover,
#toc a.active {
  color: var(--neon-cyan);
  border-left-color: var(--neon-cyan);
  text-shadow: none;
}

#toc .level-2 { padding-left: 1.5rem; }
#toc .level-3 { padding-left: 2.25rem; }
#toc .level-4 { padding-left: 3rem; }

#toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* prev / next */

.prev-next-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.nav-card {
  display: block;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--panel-bg);
  color: var(--text-main);
}

.nav-card:hover {
  border-color: var(--neon-magenta);
  box-shadow: 0 0 16px rgba(255, 0, 230, 0.25);
  color: var(--text-main);
  text-shadow: none;
}

.next-post {
  text-align: right;
}

.nav-card-label {
  margin: 0 0 0.35rem;
  color: var(--neon-cyan);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.nav-card-title {
  margin: 0 0 0.35rem;
  color: var(--text-bright);
}

.nav-card-date {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.78rem;
}

/* ---------- 404 ---------- */

.text-404 {
  text-align: center;
  padding: 6rem 1rem;
}

.text-404 .glitch {
  font-size: 5rem;
  margin: 0;
}

.error-code {
  color: var(--warning-red);
  letter-spacing: 0.1em;
  margin: 1rem 0 2rem;
}

.error-return a {
  font-size: 1.1rem;
}

/* ---------- footer ---------- */

.footer {
  max-width: 1000px;
  margin: 3rem auto 0;
  padding: 1.25rem;
  border-top: 1px solid var(--border-color-dim);
  color: var(--text-dim);
  font-size: 0.8rem;
}

.footer-line {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.25rem 0;
}

.footer a {
  color: var(--text-dim);
}

.footer a:hover {
  color: var(--neon-cyan);
}

/* ---------- responsive ---------- */

@media (max-width: 820px) {
  .nav-links > .nav-link:not(#hamburger-menu-toggle) {
    display: none;
  }

  #hamburger-menu-toggle {
    display: flex;
  }

  .nav-hamburger-list.visibility-hidden {
    display: none;
  }

  .nav-hamburger-list:not(.visibility-hidden) {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    right: 0.5rem;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem 0;
    min-width: 160px;
    list-style: none;
    z-index: 200;
  }

  .nav-hamburger-list .nav-item {
    padding: 0.5rem 1rem;
  }

  .hero-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .prev-next-grid {
    grid-template-columns: 1fr;
  }

  .next-post {
    text-align: left;
  }

  main#content {
    padding-top: 5.5rem;
  }
}

@media (max-width: 520px) {
  .terminal-body {
    padding: 1.25rem 1.25rem;
  }

  .text-404 .glitch {
    font-size: 3rem;
  }
}